Перегляд за автором "Grigor’eva, L.I."

Сортувати за: Порядок: Результатів:

  • Characteristic properties of the three-half-turn-antenna-driven RF discharge in the Uragan-3M torsatron 
    Chechkin, V.V.; Grigor’eva, L.I.; Grekov, D.L.; Pavlichenko, R.O.; Lozin, A.V.; Kasilov, A.A.; Beletskii, A.A.; Kozulya, M.M.; Kulaga, A.Ye.; Zamanov, N.V.; Tarasov, I.K.; Mironov, Yu.K.; Romanov, V.S.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2014)
    In the λ = 3 Uragan-3M torsatron hydrogen plasma is heated by RF fields in the Ålfven range of frequencies (ω≤ωсi). Plasma with the mean density ‾ne units of 10¹² сm⁻³ is produced by the frame antenna and used as an initial ...
  • Characteristics of edge plasma turbulence in spontaneous change of confinement mode in the URAGAN-3M torsatron 
    Sorokovoy, E.L.; Grigor’eva, L.I.; Chechkin, V.V.; Volkov, Ye.D.; Sorokovoy, Ye.L.; Burchenko, P.Ya.; Tsybenko, S.A.; Lozin, A.V.; Litvinov, A.P.; Masuzaki, S.; Yamazaki, K. (Вопросы атомной науки и техники, 2005)
    It is shown that in the Uragan-3M torsatron under conditions of spontaneous change of confinement mode caused by formation of an internal transport barrier, a layer with the E×B velocity shear appears at the boundary of ...
  • Continuous wall conditioning VHF discharge without magnetic field in a toroidal device 
    Lozin, A.V.; Moiseenko, M.M.; Kozulya, M.M.; Kramskoj, E.D.; Korovin, V.B.; Yevsyukov, A.V.; Grigor’eva, L.I.; Beletskii, A.A.; Shapoval, A.N.; Makhov, M.M.; Krasyuk, A.Yu.; Baron, D.I. (Вопросы атомной науки и техники, 2016)
    Experiments were carried out at Uragan-2M torsaron for wall conditioning without magnetic field. Plasma discharge was created with the same antenna and VHF generator used for weak magnetic field (B0=100 G) wall conditioning. ...
  • Creation of low density starting plasma with small frame antenna at Uragan-3M device 
    Kozulya, M.M.; Kramskoy, E.D.; Korovin, V.B.; Yevsyukov, A.V.; Lozin, A.V.; Kasilov, A.A.; Grigor’eva, L.I.; Kulaga, A.E.; Maznichenko, S.M.; Mironov, Yu.K.; Romanov, V.S.; Chechkin, V.V. (Вопросы атомной науки и техники, 2015)
    Deficient shot-to-shot stability of Uragan-3M discharges makes difficult to reproduce experimental results over the period of experimental session. An efficient way of reducing difference between shots is creation of initial ...
  • Density and potential fluctuations in the edge plasma of the Uragan-3m torsatron 
    Sorokovoy, E.L.; Chechkin, V.V.; Grigor’eva, L.I.; Chechkin, A.V.; Gonchar, V.Yu.; Volkov, E.D.; Nazarov, N.I.; Tsybenko, S.A.; Lozin, A.V.; Litvinov, A.P.; Kulaga, A.Ye.; Mironov, Yu.K.; Romanov, V.S.; Masuzaki, S.; Yamazaki, K. (Вопросы атомной науки и техники, 2002)
    Ion saturation current and floating potential fluctuations are recorded by movable array of 4 Langmuir probes near the boundary of the confinement region in the l = 3/m = 9 Uragan-3M torsatron with an RF produced and ...
  • Divertor flow and particle loss behaviors in spontaneous change of confinement state in the URAGAN-3M torsatron 
    Chechkin, V.V.; Sorokovoy, E.L.; Grigor’eva, L.I.; Slavnyj, A.S.; Sorokovoy, Ye.L.; Volkov, E.D.; Nazarov, N.I.; Burchenko, P.Ya.; Tsybenko, S.A.; Lozin, A.V.; Kulaga, A.Ye.; Litvinov, A.P.; Mironov, Yu.K.; Romanov, V.S.; Masuzaki, S.; Yamazaki, K. (Вопросы атомной науки и техники, 2005)
    Under conditions of spontaneous change of plasma confinement state having been observed recently in the U-3M torsatron with a natural helical divertor, it is shown that at the initial phase of this change all the components ...
  • Effects of plasma heating on the magnitude and distribution of plasma flows in the helical divertor of the Uragan-3M torsatron 
    Chechkin, V.V.; Grigor’eva, L.I.; Sorokovoy, E.L.; Smirnova, M.S.; Slavnyj, A.S.; Volkov, E.D.; Nazarov, N.I.; Tsybenko, S.A.; Lozin, A.V.; Litvinov, A.P.; Konovalov, V.G.; Bondarenko, V.N.; Kulaga, A.Ye.; Mironov, Yu.K.; Masuzaki, S.; Yamazaki, K. (Вопросы атомной науки и техники, 2002)
    Recently, a strong up-down asymmetry in the poloidal distributions of diverted plasma flows has been observed in the l = 3/m = 9 Uragan-3M torsatron, in many features similar to what have been observed in the l = 2 Heliotron ...
  • Estimations of plasma potential and density by the heavy ion beam probing diagnostics on the Uragan-2M torsatron 
    Komarov, A.D.; Chmyga, A.A.; Chechkin, V.V.; Grigor’eva, L.I.; Deshko, G.N.; Kozachek, A.S.; Krupnik, L.I.; Khrebtov, S.M.; Maznichenko, S.M.; Mironov, Yu.K.; Romanov, V.S.; Zhezhera, A.I. (Вопросы атомной науки и техники, 2016)
    First estimations of plasma electric potential and density in URAGAN -2M (U-2M) torsatron were done by the Heavy Ion Beam Probing Diagnostic (HIBP). The estimated plasma potential has the negative potential value of -(80…195) ...
  • Fast ion generation and its effect on ETB formation in the U-3M torsatron 
    Chechkin, V.V.; Grigor’eva, L.I.; Sorokovoy, E.L.; Sorokovoy, Ye.L.; Beletskii, A.A.; Slavnyj, A.S.; Burchenko, P.Ya.; Lozin, A.V.; Tsybenko, S.A.; Litvinov, A.P.; Kulaga, A.Ye.; Mironov, Yu.K.; Romanov, V.S.; Kurilo, D.V. (Вопросы атомной науки и техники, 2006)
    In the l=3 U-3M torsatron with RF produced and heated plasmas, a two-temperature ion energy distribution arises with a minor group of suprathermal ions. It is shown that a possible mechanism of fast ion generation is ...
  • First results of the renewed Uragan-2M torsatron 
    Beletskii, A.A.; Berezhnyj, V.L.; Burchenko, P.Ya.; Chechkin, V.V.; Chernyshenko, V.Ya.; Grigor’eva, L.I.; Gubarev, S.P.; Konovalov, V.G.; Kulaga, A.E.; Kurilo, D.V.; Lesnyakov, G.G.; Losin, A.V.; Maznichenko, S.M.; Mironov, Yu.K.; Moiseenko, V.E.; Ozherel’ev, F.I.; Opaleva, G.P.; Pashnev, V.K.; Pavlichenko, O.S.; Prokopenko, A.V.; Romanov, V.S.; Sergeev, Yu.F.; Skibenko, A.I.; Shapoval, A.N.; Shtan, A.F.; Shvets, O.M.; Solodovchenko, S.I.; Sorokovoy, Ye.L.; Taran, V.S.; Tarasov, I.K.; Tereshin, V.I.; Tsybenko, S.A.; Voitsenya, V.S.; Volkov, E.D.; Zolototrubova, M.I. (Вопросы атомной науки и техники, 2008)
    The results of experimental investigation on the vacuum magnetic surfaces in the l=2 torsatron with an additional toroidal field Uragan-2M at wide varying operation parameters are presented. Also the first results on the ...
  • First tests of the biased movable B4C-limiter in the Uragan-2M torsatron under RF and UHF wall conditioning 
    Glazunov, G.P.; Baron, D.I.; Bondarenko, M.N.; Burchenko, P.Ya.; Chechkin, V.V.; Chernyshenko, V.Ya.; Grigor’eva, L.I.; Konovalov, V.G.; Konotopskiy, A.L.; Kotenko, V.G.; Lozin, A.V.; Maznichenko, S.M.; Moiseenko, V.E.; Pashnev, V.K.; Ponomarenko, N.P.; Solodovchenko, S.I.; Sorokovoy, Ye.L.; Shapoval, A.V.; Tereshin, V.I.; Voitsenya, V.S. (2010)
    The work describes the design of a multifunctional B4C-limiter, and reports preliminary results from experimental study of the limiter operated at steady-state and pulsed RF discharge cleaning regimes in the Uragan-2M torsatron.
  • Formation of ITB in the vicinity of rational surfaces in the Uragan-3M torsatron 
    Volkov, E.D.; Berezhnyj, V.L.; Bondarenko, V.N.; Chechkin, V.V.; Fomin, I.P.; Grigor’eva, L.I.; Konovalov, V.G.; Kotsubanov, V.D.; Kulaga, A.E.; Lapshin, V.I.; Lesnyakov, G.G.; Litvinov, A.P.; Lozin, A.V.; Mironov, Yu.K.; Moiseenko, V.E.; Nazarov, N.I.; Nikol’skij, I.K.; Ocheretenko, V.L.; Pavlichenko, O.S.; Pinos, I.B.; Podoba, Yu.Ya.; Romanov, V.S.; Shapoval, A.N.; Shcherbinina, T.E.; Skibenko, A.I.; Slavnyi, A.S.; Sorokovoy, E.L.; Tarasov, I.K.; Tsybenko, S.A.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2003)
    It was shown that there is the possibility of ITB formation in the vicinity of rational surfaces in a torsatron magnetic configuration. The formation of ITB is accompanied by fast change of plasma poloidal rotation velocity, ...
  • Influence of movable B₄C-limiter on characteristics of RF discharge plasma in the Uragan-2M torsatron 
    Glazunov, G.P.; Lozin, A.V.; Konotopskiy, A.L.; Baron, D.I.; Beletskii, A.A.; Bondarenko, M.N.; Chechkin, V.V.; Dreval, M.B.; Grigor’eva, L.I.; Kozulya, M.M.; Maznichenko, S.M.; Moiseenko, V.E.; Mironov, Yu.K.; Pavlichenko, R.O.; Romanov, V.S.; Shapoval, A.N. (Вопросы атомной науки и техники, 2019)
    A variant of the B₄C movable biased pumped limiter for the Uragan-2M torsatron is described. Some results of experiments with the limiter moved from the vacuum chamber wall to the central region of the plasma column in the ...
  • Influence of the frame-type antenna on the RF-discharge peripheral plasma parameters in the Uragan-3M torsatron 
    Leleko, Ya.F.; Grigor’eva, L.I.; Chechkin, V.V.; Grekov, D.L. (Вопросы атомной науки и техники, 2017)
    A qualitative evaluation is made of what changes of the electric potential near the frame-type antenna occur under the influence of following effects: the ponderomotive Miller force, which acts on plasma electrons near the ...
  • Peripheral plasma characteristics in the Uragan-3M torsatron 
    Kasilov, A.A.; Grigor’eva, L.I.; Chechkin, V.V.; Beletskii, A.A.; Pavlichenko, R.O.; Lozin, A.V.; Kozulya, M.M.; Kulaga, A.Ye.; Zamanov, N.V.; Mironov, Yu.K.; Romanov, V.S.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2015)
    In the l=3/m=9 Uragan-3M (U-3M) torsatron a hydrogen plasma is produced and heated by RF fields in the Alfvén range of frequencies (ω≤ωci). Peripheral plasma is investigated using two moveable Langmuir probes. Spatial ...
  • Radio-frequency plasma start-up at Uragan-3M stellarator 
    Moiseenko, V.E.; Lyssoivan, A.; Wauters, T.; Tripský, M.; Lozin, A.V.; Pavlichenko, R.O.; Kozulya, M.M.; Dreval, M.B.; Mironov, Yu.K.; Romanov, V.S.; Kulaga, A.Ye.; Zamanov, N.V.; Shapoval, A.N.; Konovalov, V.G.; Chechkin, V.V.; Grigor’eva, L.I.; Beletskii, A.A.; Kasilov, A.A.; Garkusha, I.E. (Вопросы атомной науки и техники, 2017)
    A double frame antenna with a broad spectrum of parallel wavenumbers (with respect to the magnetic field) is used for radio-frequency (RF) plasma production in Uragan-3M stellarator type device. The delay between the start ...
  • RF heating below ion-cyclotron frequencies in Uragan torsatrons 
    Moiseenko, V.E.; Dreval, M.B.; Burchenko, P.Ya.; Losin, A.V.; Berezhnyj, V.L.; Bondarenko, V.N.; Chechkin, V.V.; Grigor’eva, L.I.; Hartmann, D.; Koch, R.; Konovalov, V.G.; Kotsubanov, V.D.; Kramskoi, Ye.D.; Kulaga, A.E.; Lyssoivan, A.I.; Mironov, V.K.; Pavlichenko, R.O.; Romanov, V.S.; Shapoval, A.N.; Skibenko, A.I.; Slavnyi, A.S.; Tereshin, V.I.; Voitsenya, V.S. (2010)
    The experiments on Uragan-3M torsatron (stellarator) on Alfvén resonance heating are presented. Usage of the three-halfturn antenna provides plasma density increase and heating of the electron plasma component.
  • RА discharge dynamics with passing over l- and H-like mode states in the URAGAN-3M torsatron 
    Chechkin, V.V.; Pankratov, I.M.; Grigor’eva, L.I.; Beletskii, А.А.; Kasilov, A.A.; Burchenko, P.Ya.; Lozin, А.V.; Tsybenko, S.А.; Slavnyj, А.S.; Litvinov, A.P.; Kulaga, А.Ye.; Pavlichenko, R.O.; Zamanov, N.V.; Mironov, Yu.K.; Romanov, V.S.; Pashnev, V.K.; Maznichenko, S.M.; Volkov, Ye.D. (Вопросы атомной науки и техники, 2012)
    In the l=3 Uragan-3M torsatron a hydrogen plasma with the density ¬ne ~ 2×10¹² cm⁻³ is produced and heated by RF fields in the ω ≤ ωсi range of frequencies with using a frame-like antenna. Time variations are considered ...
  • Stellarator research at IPP KIPT: status and prospects 
    Moiseenko, V.E.; Glazunov, G.P.; Lozin, A.V.; Konotopskiy, A.L.; Baron, D.I.; Beletskii, A.A.; Bondarenko, M.N.; Chechkin, V.V.; Dreval, M.B.; Grigor’eva, L.I.; Kozulya, M.M.; Maznichenko, S.M.; Mironov, Yu.K.; Pavlichenko, R.O.; Romanov, V.S.; Shapoval, A.N.; Korovin, V.B.; Konovalov, V.G.; Zamanov, N.V.; E.V., Turianska; Kulyk, Yu.S.; Wauters, T.; Lyssoivan, A.I.; Ågren, O.; Garkusha, I.E.; Uragan-2M Team (Вопросы атомной науки и техники, 2019)
    Features of the recent Uragan-2M campaign are reviewed together with some theoretical advances. They include experiments with B4C limiter, studies of various 1…20 kHz oscillations, development of a new in-situ diagnostics ...
  • Studies of edge turbulence in the Uragan-3M torsatron 
    Beletskii, A.A.; Chechkin, V.V.; Pankratov, I.M.; Grigor’eva, L.I.; Sorokovoy, Ye.L.; Volkov, Ye.D.; Burchenko, P.Ya.; Kulaga, A.Ye.; Tsybenko, S.A.; Lozin, A.V.; Slavnyj, A.S.; Zamanov, N.V.; Pashnev, V.K.; Berezhnyj, V.L. (Вопросы атомной науки и техники, 2011)
    Spatial and temporal behavior of the edge fluctuations and their correlation with plasma density behavior inside the confinement region of the Uragan-3M torsatron are investigated. The key role of the radial electric field ...